Our expert says:
Post nasal drip is not a side effect of Puresis.
The most common cause of PND, which is essentially an over production of mucous from the upper respiratory tracts (nasal tissue) and the sinuses, is allergic rhinitis. The source of the allergy can be anything from food related allergins (dairy products and / or wheat products) to environmental allergins (pollen, dust).
In terms of prevention one can try to avoid contact with the offending allergin i.e. avoid eating dairy and wheat for a while (usually up to 3 weeks) to see if this makes a difference. It's more difficult to avaoid the environmental allergins, but avoid direct contact with pollens, grasses etc. as far as is possible.
Consult with a homeopath / naturopath as there are some natual antihistamines (don't have the side effects of the chemical ones) or see if a health store near you can recommed something over the counter.
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